Method and system for x-ray image generation

    公开(公告)号:US09652885B2

    公开(公告)日:2017-05-16

    申请号:US15257622

    申请日:2016-09-06

    发明人: Milan Ikits

    摘要: A method for generating a virtual radiograph for display on a display device, including providing an image generation system having a processing circuit including a processor and a memory device, the image generation system coupled to the display device. The method further including retrieving three-dimensional image data of an anatomy stored in the memory and retrieving a three-dimensional bone model corresponding to a portion of the anatomy stored in the memory. The method further including associating the three-dimensional bone model with the three-dimensional image data such that the three-dimensional bone model defines first boundary containing a first bounded volume within the three-dimensional image data corresponding to the portion of the anatomy, and performing a volume ray casting process on the three-dimensional image data.

    X-RAY IMAGING APPARATUS, MEDICAL IMAGE PROCESSING APPARATUS, X-RAY IMAGING METHOD AND MEDICAL IMAGE PROCESSING METHOD
    2.
    发明申请
    X-RAY IMAGING APPARATUS, MEDICAL IMAGE PROCESSING APPARATUS, X-RAY IMAGING METHOD AND MEDICAL IMAGE PROCESSING METHOD 审中-公开
    X射线成像装置,医学图像处理装置,X射线成像方法和医学图像处理方法

    公开(公告)号:US20140192960A1

    公开(公告)日:2014-07-10

    申请号:US14205970

    申请日:2014-03-12

    发明人: Takuya SAKAGUCHI

    IPC分类号: A61B6/00

    摘要: According to one embodiment, an X-ray imaging apparatus includes an X-ray image acquisition unit, a control system and a display processing part. The X-ray image acquisition unit acquires X-ray image data of an object by using at least one imaging system. The control system controls the imaging system to acquire X-ray image data corresponding to different directions by reciprocating the imaging system repeatedly. The display processing part acquires X-ray image data for stereoscopic viewing out of the X-ray image data corresponding to the different directions to generate and display stereoscopically visible image data on a display unit based on the X-ray image data for the stereoscopic viewing. The X-ray image data for the stereoscopic viewing are acquired in a period without a motion or a possibility of the motion in an imaging part of the object.

    摘要翻译: 根据一个实施例,X射线成像装置包括X射线图像获取单元,控制系统和显示处理部分。 X射线图像获取单元通过使用至少一个成像系统来获取对象的X射线图像数据。 控制系统通过反复往复成像系统来控制成像系统获取对应于不同方向的X射线图像数据。 显示处理部分基于与不同方向相对应的X射线图像数据获取用于立体观看的X射线图像数据,以基于用于立体观看的X射线图像数据在显示单元上生成和显示立体视觉图像数据 。 用于立体观看的X射线图像数据在物体的成像部分中没有运动或运动的可能性的时间段内被获取。

    Extended monochromatic x-ray source
    3.
    发明授权
    Extended monochromatic x-ray source 失效
    扩展的单色X射线源

    公开(公告)号:US3867637A

    公开(公告)日:1975-02-18

    申请号:US39377273

    申请日:1973-09-04

    申请人: RAYTHEON CO

    摘要: An extended radiating aperture for X-rays is provided by means of a stationary target of a heavy metal positioned for uniform illumination by high speed electrons emanating from a cathode and accelerating through a difference of potential between the cathode and the target. The target is in the form of a relatively thin film which can be deposited on a substrate transparent to Xradiation. A layer of fluorescent material is placed adjacent the substrate on the opposite side thereof from the target so that Xrays generated within the target material pass through the target material and impinge on the fluorescent layer. The fluorescent material enhances the monochromaticity of the X-ray spectrum by emitting fluorescent X-radiation while substantially absorbing incident X-radiation having energies above the fluorescent radiation spectrum. A zone plate is positioned adjacent the fluorescent layer to spatially modulate the radiation of the radiating aperture to provide this radiation with a spatial frequency spectrum suitable for obtaining high resolution roentgenograms. The zone plate provides a coding on the roentgenogram which is then decoded by an optical processor to form a visible image of an object being X-rayed. Alternative embodiments of the invention include the use of an inclined transmissive target, a transmissive target having serrations, and the use of a moire pattern mask between the target and the fluorescent material to augment fluorescent radiation from the target and to inhibit the passage of X-radiation normal to the layer of fluorescent material.

    摘要翻译: 用于X射线的扩展辐射孔通过重金属的固定靶提供,该重金属的定位用于通过从阴极发出的高速电子均匀照射并加速通过阴极和靶之间的电位差。 目标是相对薄的膜的形式,其可以沉积在对X射线透明的基底上。 将荧光材料层放置在与靶相反的一侧的衬底附近,使得在目标材料内产生的X射线通过目标材料并撞击荧光层。 荧光材料通过发射荧光X射线增强X射线光谱的单色性,同时基本上吸收具有高于荧光辐射光谱的能量的入射X射线。 区域板邻近荧光层定位,以空间调制辐射孔的辐射,以提供适合于获得高分辨率图谱的空间频谱的该辐射。 区域板提供了在光谱图上的编码,然后由光学处理器对其进行解码以形成被X射线的物体的可视图像。 本发明的替代实施例包括使用倾斜透射目标,具有锯齿的透射目标,以及在目标和荧光材料之间使用莫尔图案掩模以增加来自目标物体的荧光辐射并阻止X射线的通过, 辐射垂直于荧光材料层。

    METHOD AND SYSTEM FOR X-RAY IMAGE GENERATION

    公开(公告)号:US20170248840A1

    公开(公告)日:2017-08-31

    申请号:US15595527

    申请日:2017-05-15

    发明人: Milan Ikits

    IPC分类号: G03B42/02 G09B23/28

    摘要: A method of creating an image including retrieving three-dimensional image data of an anatomy, retrieving a model of a portion of the anatomy, associating the model with the three-dimensional image data such that the model defines a bounded volume within the three-dimensional image data corresponding to the portion of the anatomy, and creating a virtual radiograph of the portion of the anatomy. Creating the virtual radiograph includes casting a plurality of rays from an origin point through the bounded volume, sampling, for each ray, the bounded volume at a plurality of sampling steps along the ray, the sampling steps separated by a sampling distance, and calculating, for each ray, an accumulated attenuation value of the bounded volume along the ray based on the samples.

    CT SCANNER INCLUDING A SENSOR WHICH IS ACTIVATED TO ALLOW MANUAL ROTATION OF GANTRY
    7.
    发明申请
    CT SCANNER INCLUDING A SENSOR WHICH IS ACTIVATED TO ALLOW MANUAL ROTATION OF GANTRY 审中-公开
    CT扫描仪包括一个传感器,它被激活以允许手动旋转GANTRY

    公开(公告)号:US20080192885A1

    公开(公告)日:2008-08-14

    申请号:US12030341

    申请日:2008-02-13

    IPC分类号: G01N21/00

    摘要: A CT scanner includes a gantry, a handle, and a sensor located on or connected to the handle. During operation of the CT scanner, a control provides a signal to a motor to rotate the gantry about an axis of rotation. When the CT scanner is not taking a CT scan, a locking mechanism locks the gantry to prevent rotation of the gantry. When the sensor detects an operator, the control provides a signal to disengage the locking mechanism, allowing the gantry to freely rotate about the axis of rotation. When the sensor no longer detects the operator, the control sends a signal to lock the locking mechanism and lock the gantry in the current position.

    摘要翻译: CT扫描器包括位于或连接到手柄的龙门架,手柄和传感器。 在CT扫描器的操作期间,控制器向马达提供信号以围绕旋转轴线旋转机架。 当CT扫描仪不进行CT扫描时,锁定机构锁定机架以防止机架旋转。 当传感器检测到操作者时,控制器提供信号以使锁定机构脱离,允许机架围绕旋转轴线自由旋转。 当传感器不再检测到操作者时,控制器发出一个信号锁定锁定机构,并将龙门架锁定在当前位置。

    Photographing apparatus and three-dimensional image generating apparatus
    8.
    发明授权
    Photographing apparatus and three-dimensional image generating apparatus 有权
    拍摄装置和三维图像生成装置

    公开(公告)号:US07369641B2

    公开(公告)日:2008-05-06

    申请号:US11342049

    申请日:2006-01-27

    IPC分类号: G21K4/00 G01N23/04

    摘要: This specification discloses a three-dimensional image pickup and display apparatus having a radiation source for applying a radioactive ray to an object, a photographing unit for photographing the transmission image of the object, and a control unit for setting three-dimensional display parameters for observing a three-dimensional image which conforms to a three-dimensional display output device. The control unit changes the position of the radiation source in conformity with the three-dimensional display parameters.

    摘要翻译: 本说明书公开了一种具有用于向物体施加放射线的辐射源的三维图像拾取和显示装置,用于拍摄物体的透射图像的拍摄单元和用于设置用于观察的三维显示参数的控制单元 符合三维显示输出装置的三维图像。 控制单元根据三维显示参数改变辐射源的位置。

    X-ray exposure system for 3D imaging
    10.
    发明授权
    X-ray exposure system for 3D imaging 有权
    用于3D成像的X射线曝光系统

    公开(公告)号:US6139183A

    公开(公告)日:2000-10-31

    申请号:US174159

    申请日:1998-10-16

    申请人: Rainer Graumann

    发明人: Rainer Graumann

    摘要: An X-ray exposure system has a mobile X-ray apparatus with an X-ray source and an X-ray receiver that are adjustable relative to a subject for registering successive 2D projections of the subject from different projection directions, an arrangement disposed outside the beam path of the X-ray beam emanating from the X-ray source for directly determining the projection geometries of the X-ray source and of the X-ray receiver at the points in time of the individual 2D projections, and a computer supplied with signals from the arrangement for the direct determination of the projection geometries, which reconstructs 3D images of the subject from the 2D projections.

    摘要翻译: X射线曝光系统具有X射线源和X射线接收器,其可相对于被摄体调节,用于从不同的投影方向记录被摄体的连续2D投影, 从X射线源发射的X射线束的光束路径,用于直接确定在各个2D投影的时间点的X射线源和X射线接收器的投影几何形状,以及提供的计算机 从用于直接确定投影几何的布置的信号,其从2D投影重建对象的3D图像。